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Unnamed SeaMinecraft mod for 1.21.11

Additional structures for the sea and beach biomes, focusing on an immersive expansion for the vanilla game.

server onlynewest supported 1.21.11AdventureWorldgen
Latest version
1.2.5
Minecraft
1.19 to 1.21.11
Java
Java 21+
Loaders
Fabric, Quilt, NeoForge, Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
230.3k
Updated
8 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Unnamed Sea servers

One click and Unnamed Sea is installed with the right loader, on hardware built for it.

  • 1.21.11
  • Fabric
  • Quilt
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Unnamed Sea declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric, Quilt, NeoForge, Forge21+declared9 Dec 2025
1.21.10Forge, Quilt, NeoForge, Fabric21+declared7 Oct 2025
1.21.9Forge, Quilt, NeoForge, Fabric21+declared30 Sept 2025
1.21.8Forge, Quilt, NeoForge, Fabric21+declared17 Jul 2025
1.21.7Forge, Quilt, NeoForge, Fabric21+declared30 Jun 2025
1.21.6NeoForge, Quilt, Forge, Fabric21+declared17 Jun 2025
1.21.5Fabric, Quilt, NeoForge, Forge21+declared25 Mar 2025
1.21.4Forge, Quilt, NeoForge, Fabric21+declared3 Dec 2024
1.21.3Forge, Quilt, NeoForge, Fabric21+declared23 Oct 2024
1.21.2Forge, Quilt, NeoForge, Fabric21+declared22 Oct 2024
1.21.1NeoForge, Quilt, Fabric, Forge21+declared8 Aug 2024
1.21Fabric, Forge, NeoForge, Quilt21+declared13 Jun 2024
1.20.6Fabric, Quilt, NeoForge, Forge21+declared29 Apr 2024
1.20.5Forge, Quilt, NeoForge, Fabric21+declared23 Apr 2024
1.20.4Forge, Quilt, NeoForge, Fabric17+declared7 Dec 2023
1.20.3Forge, Quilt, NeoForge, Fabric17+declared4 Dec 2023
1.20.2Forge, Quilt, NeoForge, Fabric17+declared20 Sept 2023
1.20.1Fabric, Quilt, NeoForge, Forge17+declared12 Jun 2023
1.20Fabric, Quilt, NeoForge, Forge17+declared2 Jun 2023
1.19.4Forge, Quilt, NeoForge, Fabric17+declared14 Mar 2023
1.19.3Forge, Quilt, NeoForge, Fabric17+declared7 Dec 2022
1.19.2Forge, Quilt, NeoForge, Fabric17+declared5 Aug 2022
1.19.1Forge, Quilt, NeoForge, Fabric17+declared27 Jul 2022
1.19Quilt, Forge, NeoForge, Fabric17+declared7 Jun 2022

Download

From Unnamed Sea’s own host. Nothing is re-hosted here.

1.2.5release1 Feb 2026

u_sea-1.2.5+mc1.19-1.21.11.jar · 0.5 MB · for 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4 +19 more

Download latest
737f90071ce9…
Older versions7
  • 1.2.419 Oct 20251.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4 +18 more0.5 MB833aa4e016d3…Get
  • 1.2.320 Jul 20251.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4 +16 more0.5 MB27d4f48e766c…Get
  • 1.2.22 Jul 20251.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4 +15 more0.5 MB5d8f10124cf1…Get
  • 1.2.124 Jun 20251.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4 +14 more0.5 MBa161f76ffd52…Get
  • 1.2.011 Jun 20251.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4 +13 more0.5 MB56896bf4e275…Get
  • 1.1.016 May 20251.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4 +13 more0.4 MBcc402cb86c29…Get
  • 1.0.01 Oct 20241.21, 1.21.10.1 MB37905068f5aa…Get

Frequently asked

Does Unnamed Sea work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Unnamed Sea declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Unnamed Sea support?

Everything the author has declared, from 1.19 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Unnamed Sea on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does Unnamed Sea support?

Fabric, Quilt, NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Unnamed Sea?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Unnamed Sea under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Unnamed Sea?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Unnamed Sea safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .